Quick Answer (TL;DR)
Net Promoter Score (NPS) measures likelihood that customers recommend your product. The formula is % Promoters - % Detractors. Industry benchmarks: SaaS: 30-50 is good; 50+ is excellent. Track this metric when measuring overall customer satisfaction.
What Is Net Promoter Score (NPS)?
Likelihood that customers recommend your product. NPS was introduced by Fred Reichheld in a 2003 Harvard Business Review article and is maintained by Bain & Company's Net Promoter System. This is one of the core metrics in the referral metrics category and is essential for any product team serious about data-driven decision making.
Net Promoter Score (NPS) measures the organic growth potential of your product. Referral and word-of-mouth metrics are powerful because they represent growth that does not require proportional increases in marketing spend.
Understanding net promoter score (nps) in context, alongside related metrics, gives you a more complete picture than tracking it in isolation. Use it as part of a balanced metrics dashboard.
The Formula
% Promoters - % Detractors
How to Calculate It
Apply the formula % Promoters - % Detractors using data from a consistent time period. Pull the values from your analytics platform or data warehouse, compute the result, and compare against the benchmarks below.
Benchmarks
SaaS: 30-50 is good; 50+ is excellent
Benchmarks vary significantly by industry, company stage, business model, and customer segment. Use these ranges as starting points and calibrate to your own historical data over 2-3 quarters. Your trend matters more than any absolute number. Consistent improvement is the goal.
When to Track Net Promoter Score (NPS)
When measuring overall customer satisfaction. Specifically, prioritize this metric when:
- You are building or reviewing your metrics dashboard and need referral indicators
- Leadership or investors ask about referral performance
- You suspect a change in product, pricing, or go-to-market strategy has affected this area
- You are running experiments that could impact net promoter score (nps)
- You need a quantitative baseline before making a strategic decision
How to Improve
- Make sharing frictionless. Reduce the steps required to refer someone. Pre-written messages, one-click sharing, and in-product referral prompts significantly increase participation rates.
- Incentivize both sides. The most effective referral programs reward both the referrer and the referred user. Two-sided incentives increase conversion 2-3x compared to one-sided rewards.
- Time referral asks strategically. Ask for referrals immediately after a user experiences a moment of delight. Completing a milestone, receiving positive results, or upgrading their plan.
- Close the feedback loop. Collecting scores is only valuable if you act on them. Route low scores to the right team for follow-up and track improvement over time.
Common Pitfalls
- Survey fatigue. Over-surveying your users leads to low response rates and selection bias. Collect scores at strategic moments rather than constantly.
- Measuring program activity instead of outcomes. Referral invites sent is a vanity metric. Track actual conversions and the downstream revenue generated by referred customers.
- Measuring without acting. Tracking this metric is only valuable if you have a process for reviewing it regularly and a playbook for responding when it moves outside acceptable ranges.
Related Metrics
- Viral Coefficient (K-factor): number of new users each user generates
- Referral Rate: percentage of users who make a referral
- Referral Conversion Rate: percentage of referred users who sign up
- Invites Sent Per User: average referral invitations per active user
- Product Metrics Cheat Sheet: complete reference of 100+ metrics